Expansible pipe-joint.



I. A. KIDD.

EXPANSIBLE FIFE JOINT. APPUCMHAI men SEFT- 9. mm.

Patented Nov. 9,

. invenfior I Attorneys srarns PATENT OFFEOE,

IEYEET KIDD, SALISBURY, NORTH CAROLINA.

EXPANSIBLE ZIEE-J'GINZ.

To aZZ whom it may concern: 9

Be it known that I, InvIN A. KIDD, a citi- Zen of the UnitedStates, residing at Salisbury, in the county of Rowan and State of North Carolina, have invented a new and useful Expansible Pipe-Joint, of which the following is a specification.

The present invention appertains to pipe joints, and aims to provide a novel and improved expansible joint for water,, air and steam pipes, use on trairs.

The present invention contemplates the provision or" a pipe assemblage of the component parts, Whereby the pipes which are attached to the coupling may expand -and contract due to changesin their temperatures, and whereby the pipes Will beconstrained for proper sliding movement. f

his invention also aims to provide an eX- pansible pipe joint or" the nature indicated, having efiective means for preventing leakage, as the pipes expand and contract.

t is also Within the scope of the invention to provide a pipe joint of the character specified, which will be comparatively sim ple, substantial and inexpensive in construction, which be readily installed upon various fluid pipes, and which will be convenient, serviceable, thoroughly practical and eilicient in its use.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details vof construction hereinafter described and claimed, it being changes in the precise embodiment of the invention herein disclosed, can be made Within the scopeof What is claimed, Without departing from the spirit oi'the invention.

The invention has been illustrated in sevei'al of its embodiments in the accompanving drawing, wherein Figure l is a longitudinal section of the straight form of the invention. Fig. '2 is a cross section taken on the line 2-2 of Fig.

Fig. 3 is a longitudinal section of a T- shaped coupling embodving the present improvements. Fig. l is a side elevation of an elbow,' coupling constructed in accordance vvi-tlrthe present invention.

- At the outset, the ord nary unions or. couplings employed a Application filed September 9, 181%. Serial No. 880,80?

and adapted particularly for.

joint embodying a unique" and inexpensivelv I understood that of the. section 1.

section 1l is of the samediarnete the it is tote noted that Withand 12 maybe preparing;

Patented-Nov; 9, 191

in train pipes, and the like, itynot intro quentl'v happens that the pipes become rep: tured or broken due to the expansive and contract-l re eiforts thereof, when temperature varies, and the prevailing unions or couplings are also not infrequently the cause of trouble in other respects, which are Well own to traimnen and others versedin the art. The presentinviention-aims to overj by theprovision ofan 'expansible signed particularly to enable the pipes connected thereto to expand andcontract, Without danger or" leakage, manner.

In carrying out the present invention, reference being had particularly to Figs. 1 and 2, wherein one form of the invention isillust-rated, there is provided a socket or tubular The socket member 1 is provided upon its periphery, With a. hexagonal or Wrench-en pipe oint or coupling de' and In a pro er gaging enlargement 6, for enabling th seebe readily rotated through the inethe section 1 is of uniform diameter throughout between the shoulder 3 and theniouth of thesocket section 1.

The coupling or joint embodies a second section 8, of cup-shape, tral opening 9, and the or Wrench-engaging portion 10npon its em cup-shaped section 8 to bereadilv rotated. :The rim of the the nouth portion of thevsection l.

A third section 11 is tubular in form, is the opening'Q of the section 8,and has another nine 12 threaded into its truding end. r

A collar 13 is threaded orotherwisejengaged upon the inner end ofthetubular section 11, although the collarl3innjr he integral With the section llfandthe collar l3is slidable snugly within the socket or bore-7 The bore of the tuhuiar of the coupling,zvvhich bore 4 of the reducedend and the sections .1, 8 and it s .inent or enamel, in end i and having the sen-1 -enlarged hexagonal slidable snugly through a wrench or other implement. The

outer or pro mouth portion of the provided with an annular outturned lip or flange seating against the end of the section 1 surrounding the mouth thereof, and

any suitable compressible packing 16 is disposed within the cup or. cap section 8 and against the ring or'annulus 14 to embrace the tubular section 11 when the cup section 8 is threaded upon the socket section 1.

i It is preferable to provide the tubular 'section 11 with a notch or pointer 17 .which will register with the outer face of the sec tion 8, when-the tubular section 11 and socket section 1 are at neutral or normal position with respect to one another. 'lIlllS will enable the parts to. be readily ad3usted in assembling them, whereby the-pipes 5 and 12 may expandnnd contract to a predeter- .iained or limited extent. Y

- The tubular section 11 'openi '9 p D ring 14, and havingthc collar 13 sliding sliding through the within the section'l, will cause the sections 1 and 11 "to slidein a true axial manner, for pi'oygierly guiding the pipes 5 and'lQ'to and from each other, withoi t the presence of alateral vibration. The collar 13. sliding within the section 1, will provide a primary means for preventing the escape of the pres sure fluid, and the ring 14 fitting tightlywithin the mouth portion of the section. 1

and snugly embracing the tubular section 11, .Will provide a second meanstor preventing the-escape of the pressure fluid, while'the.

packing 16 'inembracing the tubular section 11 will provide a third and most eifective means for said result Since the collar 13 has a limited sliding movement between the shoulder 3 of. tlieseetion 1,-and tliering 1-1, the sections 1 'andli mayv -*sparnil and contract suiiicicntly, to permit-oirtheaxial movements of thepipc's .nd 12 as they ex pandand. contract, and in thisniann'er, the coupling may adjustitself to the expansion and contraction of the pipes 5 and 12, with out danger leakage, or without danger of lateral vibration or displacement of the pipes. The cirp section hasa smooth interior portion hetween the adjacent end of the tubular section 1 and the disk portion of the snugly within. said smooth portion of the cup section; around" the tubular section 11 between the ring, 14 and cup section 8.- The ring leis of L-shape'd section so as to have.

one flange resting against the respective end of the tubular section 1, and another flange to. fit within said end of the section 1'. The {smooth portion-of the sectionS enables said preseiit coupling is adapted particularly for section to be rotated without the liability of i the packing 16 being tornor shredded. The

socketsecti'on 1, and is of thesection thiilldtlll'flllgh the-- one another. y

capacities. I

In the form delineated in Fig 3, a T- shaped casing or section 1'; is provided, the same having the internal threads 4 at one end for the reception of, one pipe 5. Cup

, sections 8 are threaded upon the other end and the arm or branch of .thecasing or section 1", and are provided with the central apertures '9' and with the hexagonal or wrench-engaging portions 10' upon. their rims or peripheries. The tubular sections 11, which are disposed at'right angles 'to' one another, and one of which is in alinement with the'pipe 5, are slidable throughthe openings '9 of the sections 8, and are providedat their inner ends with collars-13' slidabl e within one end portion of the section I land the arm or branchofthe said section 1. Rings 14 are fitted snugly Within one endpf the section 1' and the arm or branch of, the" said section, and are provided with the flanges -15 resting against the said end and arm of the section 1. Packing washers 16."

are disposed within the cup sections 8, and" against the rin gs 14:, totightly embrace the J tubular sections 11 when the sections 8' are threaded upon the section 1. The'sections' 11 are-preferably provided with the point:

ers 17 forindicating the normal positions 'of'the said sections relative to the section 1 The form illustrated in Fig. 3 has the gencral advantages of the form illustrated in Fig. 1, and furthermore, it will be 'noted that ifs the pipes or sections 5 and 11 which are in alinement, may pet only expand and contract, but may move -upwardly and'down- .wardly relative to the upper or vertical sectioirll'. Thus, the several pipes. or-sections and 11' may move or vibrate in various. directions in the plane of the said pipes or sections, without danger of leakage, and to take up any expansionoi" contraction, or jars and vibrations.

in the fOilII illustrated in Fig. 4, the section 1 is'in the form of -an elbow, and is adapted to have one pipe 5* threaded into one end thereof, while .the cup-section 8 is threaded upon-the other 'end or arm of the -'section 1 and hasthe tubular sectionll slidable theretlirough, in theisame'manner asl illustrated in Fig. Thus, the elbow joint cup section, and the packing 16 1s disposed-.enables the pipes'or sections 5 and 11 to .Fromthe foregoingQit will be manifest that the several forms-ofthe invention" have pipes, whereby. the respective pipes maybe common and independent advantages, dne' I inmugiz we cup A pi a goini embsdying a L 1 1011, a cup section haw '1' i run thread-- upon one and -01 tubular seciion and having a cent al ogsezaing and sm ath iniarior portion between )f f: a tubular Sfififiil am? the disk purifies 0f he cup section, second tubuiar'section dable through :118 ppening', a @0113? secured upon fine second tubular seetum wsrking snugly in the firs z mentioned tuba- 1.1 section; a ring of Lshapevl ,cmss seciie n iubular secasmy ova, I have hereie the fa my slgnza im-a ures-ems 02 two WiYZIESSES 

